Definitely not a known issue but from a quick test (running export-diff against an image being actively written) I wasn't able to recreate on v9.2.1. Are you able to recreate this reliably, and if so, can you share the steps you used? Thanks, -- Jason Dillaman ----- Original Message ----- > From: "Christoph Adomeit" <Christoph.Adomeit@xxxxxxxxxxx> > To: "Jason Dillaman" <dillaman@xxxxxxxxxx> > Cc: ceph-users@xxxxxxxx > Sent: Friday, March 18, 2016 6:19:16 AM > Subject: Re: Does object map feature lock snapshots ? > > Hi, > > I had no special logging activated. > > Today I re-enabled exclusive-lock object-map and fast-diff on an image in > 9.2.1 > > As soon as I ran an rbd export-diff I had lots of these error messages on the > console of the rbd export process: > > 2016-03-18 11:18:21.546658 7f77245d1700 1 heartbeat_map is_healthy > 'librbd::thread_pool thread 0x7f77137fe700' had timed out after 60 > 2016-03-18 11:18:26.546750 7f77245d1700 1 heartbeat_map is_healthy > 'librbd::thread_pool thread 0x7f77137fe700' had timed out after 60 > 2016-03-18 11:18:31.546840 7f77245d1700 1 heartbeat_map is_healthy > 'librbd::thread_pool thread 0x7f77137fe700' had timed out after 60 > 2016-03-18 11:18:36.546928 7f77245d1700 1 heartbeat_map is_healthy > 'librbd::thread_pool thread 0x7f77137fe700' had timed out after 60 > 2016-03-18 11:18:41.547017 7f77245d1700 1 heartbeat_map is_healthy > 'librbd::thread_pool thread 0x7f77137fe700' had timed out after 60 > 2016-03-18 11:18:46.547105 7f77245d1700 1 heartbeat_map is_healthy > 'librbd::thread_pool thread 0x7f77137fe700' had timed out after 60 > > > Is this a known issue ? > > > > > > On Tue, Mar 08, 2016 at 11:22:17AM -0500, Jason Dillaman wrote: > > Is there anyway for you to provide debug logs (i.e. debug rbd = 20) from > > your rbd CLI and qemu process when you attempt to create a snapshot? In > > v9.2.0, there was an issue [1] where the cache flush writeback from the > > snap create request was being blocked when the exclusive lock feature was > > enabled, but that should have been fixed in v9.2.1. > > > > [1] http://tracker.ceph.com/issues/14542 > > > > -- > > > > Jason Dillaman > > > > > > ----- Original Message ----- > > > From: "Christoph Adomeit" <Christoph.Adomeit@xxxxxxxxxxx> > > > To: ceph-users@xxxxxxxx > > > Sent: Tuesday, March 8, 2016 11:13:04 AM > > > Subject: Does object map feature lock snapshots ? > > > > > > Hi, > > > > > > i have installed ceph 9.21 on proxmox with kernel 4.2.8-1-pve. > > > > > > Afterwards I have enabled the features: > > > > > > rbd feature enable $IMG exclusive-lock > > > rbd feature enable $IMG object-map > > > rbd feature enable $IMG fast-diff > > > > > > > > > During the night I have a cronjob which does a rbd snap create on each > > > of my images and then an rbd export-diff > > > > > > I found out that my cronjob was hanging during the rbd snap create and > > > does not create the snapshot. > > > > > > Also more worse, sometimes also the vms were hanging. > > > > > > What are your experiences with object maps ? For me it looks that they > > > are not yet production ready. > > > > > > Thanks > > > Christoph > > > _______________________________________________ > > > ceph-users mailing list > > > ceph-users@xxxxxxxxxxxxxx > > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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